/*
RNAvigator is a tool for visualizing secondary structure of RNA
Copyright 2012 Elias La Cour & Peter Bertelsen

This file is part of RNAvigator.

RNAvigator is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

RNAvigator is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with RNAvigator.  If not, see <http://www.gnu.org/licenses/>.
*/

package rnavigator.controller;

import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JPopupMenu;

/**
 *
 * @author Elias la Cour & Peter Bertelsen
 */
public class PopupListener extends MouseAdapter {
        JPopupMenu popup;

        public PopupListener(JPopupMenu popupMenu) {
            popup = popupMenu;
        }

        public void mousePressed(MouseEvent e) {
            maybeShowPopup(e);
        }

        public void mouseReleased(MouseEvent e) {
            maybeShowPopup(e);
        }

        private void maybeShowPopup(MouseEvent e) {
            if (e.isPopupTrigger()) {
                popup.show(e.getComponent(),
                           e.getX(), e.getY());
            }
        }
    }
